Founder of T.C. Pharmaceuticals, a producer of energy drinks in Thailand. Met up with Austrian Dietrich Mateschitz two decades ago and the two decided to found an energy drink company. Chaleo provided the beverage formula and his partner contributed the marketing flair. The result: Red Bull, which now has $4.4 billion in sales and in which they each own 49%. Son Chalerm, who holds the remaining 2% stake in Red Bull, owns one of Asia's leading wine producers, Siam Winery, whose labels include Monsoon Valley and Sabai, an herb-and-wine drink.